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    <title>Document</title>
    <style>
        .navbar{
            background-color: #fdd075;
            border: 1px solid #fff;
        }
        navbar-header {
            height: 60px;
        }
        .navbar-brand {
            height: 60px;
            padding-top: 8px;
        }
        .navbar-brand img {
            width: 100px;
            height: 48px;
            margin-left: 120px;
        }
        .navbar-default .navbar-nav > li > a {
            color: #000;
        }
        .navbar-default .navbar-nav > li > a:hover {
            color: #fff;
        }
        .navbar-default .navbar-nav > li > a:focus {
            color: #fff;
            background-color: #FFB31A;
        }
        .navbar-default .navbar-nav > .open > a, .navbar-default .navbar-nav > .open > a:hover, .navbar-default .navbar-nav > .open > a:focus {
            color: #fff;
            background-color: #FFB31A;
        }
        .navbar-nav{
            margin-left: 30px;
        }
        .navbar-nav li {
            width: 100px;
            text-align: center;
        }
        .nav li a{
            height: 61px;
            padding-top: 20px;
        }
        .dropdown-menu{
            width:520px;
            text-align: center;
        }
        .dropdown-menu li{
            float: left;
            width: 80px;
            margin-left: 5px;
        }
        .dropdown-menu li a:hover{
            color: #fff;
            background-color: #FFB31A;
        }
        .dropdown-menu li a{
            height: 30px;
            padding-top: 5px;
        }
        #ul12{
            width:635px;
        }
        #ul12 li{
            width: 100px;
        }
        .navbar-form{
            margin-top: 12px;
            margin-left: 50px;
        }
        #ul22{
            width:100px;
        }
        #ul22 li{
            clear: both;
            width:100px;
        }
        #ul32{
            margin-right: 140px;
        }
        #ul32 li{
            height: 60px;
            width: 60px;
            line-height: 60px;
        }
    </style>
</head>
<body>
    <nav class="navbar navbar-default">
        <div class="container-fluid">
            <!-- Brand and toggle get grouped for better mobile display -->
            <div class="navbar-header">
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                    data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
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                    <span class="icon-bar"></span>
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                </button>
                <a class="navbar-brand" href="#"><img src="images/logo.png"></a>
            </div>

            <!-- Collect the nav links, forms, and other content for toggling -->
            <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
                <ul class="nav navbar-nav">
                    <li><a href="index.html">首页<span class="sr-only">(current)</span></a></li>
                    <li class="dropdown">
                        <a href="Menu1.html" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true"
                            aria-expanded="false">菜谱<span class="caret"></span></a>
                        <ul class="dropdown-menu">
                            <li><a href="Menu1.html"><b>家常菜</b></a></li>
                            <li><a href="#">热菜</a></li>
                            <li><a href="#">主食</a></li>
                            <li><a href="#">汤</a></li>
                            <li><a href="#">早餐</a></li>
                            <li><a href="#">午餐</a></li><br>
                            <li><a href="#"><b>中国菜系</b></a></li>
                            <li><a href="#">粤菜</a></li>
                            <li><a href="#">北菜</a></li>
                            <li><a href="#">湘菜</a></li>
                            <li><a href="#">浙菜</a></li>
                            <li><a href="#">湖北菜</a></li>
                        </ul>
                    </li>
                    <li class="dropdown">
                        <a href="heath.html" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true"
                            aria-expanded="false">饮食健康<span class="caret"></span></a>
                        <ul class="dropdown-menu" id="ul12">
                            <li><a href="heath.html"><b>饮食健康</b></a></li>
                            <li><a href="#">饮食新闻</a></li>
                            <li><a href="#">美容瘦身</a></li>
                            <li><a href="#">饮食小常识</a></li>
                            <li><a href="#">功能性调理</a></li>
                            <li><a href="#">清热火</a></li><br>
                            <li><a href="heathPerson.html"><b>人群膳食</b></a></li>
                            <li><a href="#">减肥</a></li>
                            <li><a href="#">祛痰</a></li>
                            <li><a href="#">滋阴壮阳</a></li>
                            <li><a href="#">健脾养胃</a></li>
                            <li><a href="#">人群膳食</a></li><br>
                            <li><a href="heathTips.html"><b>健康常识</b></a></li>
                            <li><a href="#">减肥</a></li>
                            <li><a href="#">祛痰</a></li>
                            <li><a href="#">滋阴壮阳</a></li>
                            <li><a href="#">健脾养胃</a></li>
                            <li><a href="#">人群膳食</a></li><br>
                            <li><a href="heathMedicine.html"><b>药膳养生</b></a></li>
                            <li><a href="#">减肥</a></li>
                            <li><a href="#">祛痰</a></li>
                            <li><a href="#">滋阴壮阳</a></li>
                            <li><a href="#">健脾养胃</a></li>
                            <li><a href="#">人群膳食</a></li><br>
                        </ul>
                    </li>
                    <li><a href="ontes.html">笔记</a></li>
                    
                </ul>
                <form class="navbar-form navbar-left">
                    <div class="form-group">
                        <input type="text" class="form-control" placeholder="搜索菜谱，菜单，食材，用户">
                    </div>
                    <button type="submit" class="btn btn-default">搜索</button>
                </form>
                <ul class="nav navbar-nav">
                    <li class="dropdown">
                        <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true"
                            aria-expanded="false">发布<span class="caret"></span></a>
                        <ul class="dropdown-menu" id="ul22">
                            <li><a href="PublishOntes.html">发布笔记</a></li>
                            <li><a href="PublishMenu.html">发布菜谱</a></li>
                        </ul>
                    </li>
                </ul>
                <ul class="nav navbar-nav navbar-right" id="ul32">
                    <li><a href="login.html">登录</a></li>
                    <li>|</li>
                    <li><a href="zhuce.html">注册</a></li>
                </ul>
            </div><!-- /.navbar-collapse -->
        </div><!-- /.container-fluid -->
    </nav>
</body>

</html>